Cradle for guns



Nov. 29, 1927.

H. C. ZIM MERMAN CRADLE FOR GUNS Filed June 7, 1927 m JN d H E Zimmerman Patented Nov. 29, 1927.

UNITED STATES HARRY C.`ZIMMERMAN, OF W'ASHINGTON, DISTRCT 0F COLUMBIA.

CRADLE FOR GUNS.

Application filed .Tune 7, 192'?.

Serial No. 197,164.

(GRANTED UNDER THE ac'r or Menon e, ieee; le srar. 1.. c25.)

VThe invention described herein may be used by the Government, or any ot its oliivided and a false step occurring during tabrication necessitates .discarding of the entire piece.

With a view to facilitating the product-ion of such units, reducing weight and permitting repair and replacement it is contemplated in the present invention to form a box cradle of shaped metal within which may be assembled the cylinders ot the recoil and counter-recoil mechanism. Y

A further object of the invention consists in the novel association with the cradle of a counter-recoil butter.

With the foregoing and other objects in View, my invention resides in the ,novel arrangement and combination of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made Vwithin the scope of what is claimed without departing from the spirit of the invention.

A-practical embodiment of the invention is illustrated in the accompanying drawing v wherein Fig. 1 is a view in side elevation of a cradle assembly constructed in accordance with the invention;

Fig. 2 is a longitudinal sectional view through the recuperator cylinders on the line v2-2 of Fig. 3;

Figs. 3 and 4 are sectional views on 'the respective lines of Fig. 1;

Fig. 5 is a longitudinal sectional view of the counter-recoil buier;

Fig. is a sectional View on the line 6 6 ot Fig. 5;

Fig. 7 is a view in rear elevation of the yoke.

Referring to the drawings by numerals of reference:

The cradle 5, in the form ot a rectangular receiver, is composed of a pair of channel shaped plates having their free edges inturned, the plate 6 being ot greater depth to constitute the body and the plate 7 forming the cover and being of considerably less depth to establish a slide for receiving the guides 8 ot the gun 9. The slide is provided with liners 10 which are held in place by the rivets 11 connecting the cover and body.

wWithin the cradle is a hydro-pnueumatic recuperator mechanism which consists of a recoil cylinder 12 and a recuperator or receiver cylinder 13 each threaded into a double chambered yoke 14 having a communicating passage lo in its dividing wall 16. The yoke is secured to the cradle by means of the bolts 17. The forward ends of the tubes forming the cylinders 12 and 13 are provided with closures 12a and 13a having threaded engagements therewith. As seen in Fig. 1 the forward portions of the cylinders rest in a support block 18 and are held in position by a pair of spacer blocks 19 and 20, all of said blocks being attached to the cradle by screw bolts 21.

The recoil cylinder contains a piston 22 attached to the gun lug 23 so that on recoil ot the gun the piston forces oil into the recuperator cylinder through the passage to displace a iloating piston 24C and compress air or a gas in the usual manner.

Referring to Figs. 1, 3 and 4 the forward portion ot the cover plate of the cradle is formed with a semi-circular depression 25 to seat a butler cylinder 26 held by clamps 27 and occupying a position between the slides of the gun. lVithin this cylinder is a piston 28 arranged to be struck by the gun during the final portion of its counter-recoil movement to compress an actuating spring 29. rllhe piston is hollowed for a portion of its llength to receive an axial throttling bar 30 which is provided externally ot' the cylinder with a handle 31 whereby it may be turned to vary the throttling orifice. The piston head is provided with an inclined passage 32 for establishing` communication with the throttling bar and also the plurality of oneway Valves 33 for permitting unobstructed displacement ot the braking fluid when the piston is moved to the rear under the intiuence of the spring.

1 claim:

1. 1n a cradle for guns, a receiver comprising a body and a cover formed ot' channelshaped plates having their free edges inturned and securedl to each other, the cover being of less depth to establish a gun slide, a double chamber-ed yoke secured to the rcceiver and having a communicatingr passage between chambers, spaced cylinders threaded to the yoke and supporting means secured to the forward portion. of the cradle and embracing the cylinders.

2. A cradle for guns including a channel' shaped body, a cover secured to said body and fiamminga gun slide, a double chambered yoke secured'to the body and having a communicating passage between chambers and a plurality of c linders hhwadod.l to the yolxe.

3. Ina cmd e fur glmy recve! ccmprlsng a channel-shaped body plate and a cover therefor, a yoke secured to therear end of y the body and a plurality of cylinders threaded to the yoke.

4. In a cradle for guns, a receiver, a cover HARRY (E. ZIMMERMAN. 

